by David Baker

NEAR PAYSON, AZ (3TV/CBS 5) – One man is dead and two others are seriously hurt after a plane went down near Payson on Friday.

Federal investigators say around 3 p.m., a Piper P28A went down “under unknown circumstances” in the Mazatzal Mountains, 8 to 10 miles southwest of Payson.

The Gila County Sheriff’s Office said 59-year-old Blaine Mathews died at the scene. Colten Egbert, 21, and Spencer Burns, 29, were flown from the wreckage to hospitals in the Phoenix-area. All three men are from Mesa.

It’s unclear why the plane crashed. The National Transportation Safety Board is investigating.